NET
18 David said to Saul, “Who am I? Who are my relatives or the clan of my father in Israel that I should become the king’s son-in-law?”
Darby
18 And David said to Saul, Who am I? and what is my life, [or] my father's family in Israel, that I should be son-in-law to the king?
KJV
18 And David said unto Saul, Who [am] I? and what [is] my life, [or] my father's family in Israel, that I should be son in law to the king?